温度 光照对果丹皮色泽的影响

Effects of Temperature and Light on Chroma of Hawkthorn Sweeten Roll

果丹皮的色泽极易发生劣变。研究了传统工艺制作的果丹皮置于常温、常温+遮光、37℃+光照(2000lx)、37℃+遮光4种处理条件下的色泽变化情况。结果表明,温度越高、光照越强,L值越大,而a值、b值在常温、黑暗条件下显著高于其他处理条件,且各处理L,a,b值随处理时间无明显变化规律。

The colour of hawkthorn sweeten roll will deteriorate easily after production. Room temperature, room temperature＋unlightness, 37 ℃＋lightness （2 000 lx） , 37 ℃＋unlightness （2 000 lx） effect on colour of hawkthom sweeten roll were studied in this paper. The results showed that L-value would be higher after treated by high temperature and intensity light, while a-value and b-value would more higher than other treatments in room temperature and unlightness. At the same time, L-value, a-value and b-value have no relationship with time after treatment.